238/1180 238/1180 CA 238/1180CC 238/1180 CA/W20 Bearing
238/1180
Bore Diameter:1180 mm
Outside Diameter:1420 mm
Width:180 mm
The 238/1180 bearing is a spherical roller bearing with an inner diameter of 1180 mm , an outer diameter of 1420 mm, a width of 180 mm. open type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
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Detailed description
Current Code:238/1180 or 238/1180 CA 238/1180CC 238/1180 CA/W20
Dimension:1180x1420x180 mm
Number of roller: Double row
Weight:575 kgs
The cage type: two window-type steel cages or machined
cage of brass or steel
The forging material:GCr15SiMn
The delivery time:30-40 days
The package:standard export wooden case or carton boxes
The inner ring of spherical roller bearings have two raceways, outer raceway is a part of a sphere, whose curvature center is on the axis of bearings. This type of bearings possesses self-aligning performance, allowing the misalignment of shaft, and can also be used under certain permanent misalignment.
These bearings are able to carry higher radial loads, as well as certain axial loads, but can’t be used to carry pure axial loads. The osculation between rollers and raceways is high, and friction is higher than cylindrical roller bearings. Therefore, the limiting speed is lower.
This type of bearings is especially suitable to the heavy or vibrating load applications.
The type 20000C bearings have symmetrical rollers and pressed steel cages, no rib on inner ring, rollers are longer, load carrying capacity is high, and rollers are guided by a floating guide ring.
The type 20000CC bearings are the modified type to type 20000C, the friction between rollers and raceway is decreased, load carrying capacity is enhanced.
The type 20000CA bearings adopt symmetrical spherical rollers and machined solid cages, they have floating guide ring and integral ribs on inner rings.
The type 20000TN1 bearings use symmetrical rollers and nylon molded cages, no integral ribs and floating guide ring on inner ring, the cages are guided by rollers.
The type 20000CC, 20000CA and 20000TN1 bearings are developed in recent years and their internal design are optimized, should give priority to be used.
Spherical roller bearings are primarily used in the applications,
such as rolling mills, paper-making, power transmitting equipments and ship mechanics, gearbox, vibratory,Metallurgical
Mining and construction
Fluid machinery
Material handling
Industrial gearboxes
Textile industry
Railways
Energy
Rigid stranders
Tubular stranders
Bow skip stranders
Double Twist Bunchers
Drum Twister Stranders
Planetary stranders
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